JP2000300041A - Mobile type tea-plucking machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile type tea-plucking machine that is provided with a machinery constitution improving the inconvenience of poor operability in the travelling unit and the height adjuster. SOLUTION: In an auto-mobile type tea leaf plucking machine 1 in which the running units 6, 7 are mounted to the lowermost parts of the individual legs, on the front and rear sides and the left and right sides of the portal frame 3 astride the tea tree ridge and a tea-plucking machine 5 is hung down from the cart 4 that runs in the longitudinal direction, an operating unit is provided so that it may operate individually the starting and stopping of the running units 6 and 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled tea leaf picking machine having a traveling device capable of self-propelling between ridges on both sides of each tea tree ridge in a tea orchard. The present invention relates to an operation structure for traveling and tea garden management work in a tea leaf pruning machine having a configuration capable of performing tea garden management work including pruning.

[0002]

2. Description of the Related Art Conventionally, as a self-propelled tea leaf picking machine equipped with a traveling device, for example, a self-propelled tea leaf picking machine A movable on a rail laid on the ground as shown in FIG. Proposed. This conventional rail type tea picking machine A
Is equipped with front wheels D, D and rear wheels E, E at the lower ends of the front and rear and left and right legs C of a gate-shaped frame B straddling a tea tree ridge (not shown), and these front wheels D, D and rear wheels E, E To the left and right pipe-shaped rails F, F laid between the ridges on both sides of the tea tree ridge, and the rear wheels E, E are driven by the traveling motors G, G to cross the tea tree ridge in the front-rear direction. A self-propelled traveling vehicle H that travels is configured. Then, a tea picking machine I is hung on the traveling cart H, a tea leaf accommodating bag (not shown) is attached to the rear of the tea picking machine I, and the tea leaves on the tea tree ridge are picked while moving in the direction of the arrow. I am trying to do it.

[0003] On the other hand, the above-mentioned tea leaf plucking machine can perform not only plucking work but also tea garden management work such as cutting and pruning work. For example, a leveling machine is installed so as to face the tea plant on the opposite side of the tea tree ridge that the tea leaf plucking machine I faces across.

[0004] The self-propelled tea leaf picking machine A is provided on a control panel J mounted on one side in the width direction of the traveling vehicle and on a side opposed to the control panel J across the center in the width direction of the traveling vehicle. A start and stop switch (not shown) controls the traveling device, and a height adjusting operation member provided on the control panel J adjusts the height of the plucking machine or the leveling machine with respect to the tea tree top surface. It has become.

[0005]

However, the conventional self-propelled tea leaf picking machine has the following problems.
That is, operability is extremely poor because switches for controlling the start and stop of the traveling device and operation members for adjusting the height of equipment used for the tea garden management work are installed at limited positions. For example, in the case of performing the mowing work,
Since the traveling direction of the self-propelled tea leaf pruning machine is opposite between the pruning operation and the mowing operation, it is difficult to operate the above-described switches or operating members during the mowing operation. In particular, since the switches and operating members are often provided on the control panel installed on one side of the traveling bogie, not on both sides in the width direction, the worker cannot reach during the operation. Or turn around one by one to perform the operation command work. For this reason, there is a fear that runaway of the traveling device and an increase in labor burden may be caused.

SUMMARY OF THE INVENTION An object of the present invention is to provide a structure capable of solving such problems in view of the problems in the above-described conventional self-propelled tea leaf picking machine, particularly, inferior operability of a traveling device and a height adjusting unit. A self-propelled tea leaf picking machine is provided.

[0007]

According to a first aspect of the present invention, there is provided a traveling device provided at a lower end of each of front and rear and left and right legs of a gate-shaped frame straddling a tea tree ridge. A tea picking machine is hung on a traveling trolley that travels in the front-rear direction while straddling a tea tree ridge by driving a traveling device, and a tea leaf accommodating unit is attached near the tea picking machine to pick tea leaves of the tea tree ridge. The self-propelled tea leaf picking machine described above is characterized in that the traveling trolley is provided with an operation unit at each of the four corners where each operation of starting and stopping the traveling device can be performed.

According to a second aspect of the present invention, the operation unit includes:
It is characterized in that starting and stopping means are provided.

According to a third aspect of the present invention, in the traveling cart, an adjusting operation section for adjusting a plucking position of the tea leaf picking machine suspended therefrom is provided in a relative position with respect to the traveling device and the control panel of the tea leaf plucking machine. It is characterized by being provided in.

According to a fourth aspect of the present invention, a traveling device is provided at the lower end of each of the front and rear and left and right legs of the gate-shaped frame straddling the tea ridge, and the traveling device is driven to extend over the tea ridge. In a self-propelled tea leaf pruning machine in which a tea leaf pruning machine is hung on a traveling cart traveling in the front-rear direction, a tea leaf accommodating part is attached near the tea pruning machine so as to pluck tea leaves of a tea tree ridge. An operation unit for starting and stopping the traveling device is provided at a relative position on the bogie, and the traveling device is provided with a steerable configuration.

According to a fifth aspect of the present invention, the traveling device includes:
It is characterized in that the drive unit is configured to be turnable.

According to a sixth aspect of the present invention, the traveling device is
It is characterized in that a driving unit is provided at a relative position.

The invention according to claim 7 is characterized in that one of the operation sections for performing the respective operations of starting and stopping and the steering section are provided in the same place.

[0014]

According to the first to third aspects of the present invention, the start and stop switches of the traveling device are provided at the four corners of the traveling vehicle, so that the worker can reach the operator regardless of the position of the traveling vehicle. The start and stop of the traveling device can be controlled at the position, and the high adjustment of the tea garden management equipment, especially the mowing work that is installed at the position opposite to the plucking machine and proceeds in the opposite direction to the plucking place At times, the height can be adjusted at a location corresponding to the side where the mowing machine is installed at a diagonal position with the operation unit during plucking work, so it is necessary for the worker to go around the control panel and perform the adjustment operation one by one Disappears. In particular, the height on both sides of the tea ridge may be different on sloping ground, etc.In such a case, adjust the height of the smoothing machine while visually recognizing the place where the smoothing machine is facing the tea tree. It can be carried out.

In the present invention, the traveling device can be steered and the drive unit can be turned.
A turning radius greater than the steering amount can be obtained, and even a narrow headland can be entered into an adjacent tea ridge.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIGS. 1 to 5 are views showing an embodiment of the invention according to claims 1 to 3, in which the embodiment shown in FIG. 1 rolls on a pipe rail laid between ridges as a traveling device. It is intended for rail-type tea picking machines with wheels.
That is, the rail-type tea leaf picking machine 1 includes a traveling cart 4 having a gate-shaped frame 3 having a form straddling the tea ridges 2, and a tea leaf picking machine 5 suspended by the traveling cart 4. The traveling vehicle 4 has a pair of left and right driving wheels, rear wheels 6, 6 and driven wheels, front wheels 7, 7, which are installed at the lower end portions of the left and right legs of the gate-shaped frame 3. By rolling on the left and right pipe rails 8 laid with a predetermined ground height between the ridges, the vehicle can travel along the tea tree ridges 2.

The portal frame 3 is a welded structure of a square pipe made of an aluminum alloy, and includes a front horizontal frame 3a and a rear horizontal frame 3b which are arranged in parallel at predetermined intervals in the front and rear, and the front horizontal frame. A pair of left and right front leg frames 3c extending downward at substantially right angles from both ends of the frame 3a,
3c and a pair of left and right rear leg frames 3d, 3d extending downward at substantially right angles from both ends of the rear horizontal frame 3b.
A pair of left and right upper side frames 3e, 3e for connecting the upper ends of the front leg frames 3c, 3c and the upper ends of the rear leg frames 3d, 3d, respectively, to the front and rear, and the front leg frames 3c, 3c. Lower end and rear leg frame 3d,
It has a pair of left and right lower side frames 3f, 3f connecting the lower end of 3d to the front and rear, respectively. And
Rear wheels 6, 6, which constitute one of the traveling devices, are installed at the lower ends of the pair of left and right rear leg frames 3d, 3d, and are mounted on the lower ends of the pair of left and right front leg frames 3c, 3c. The other one of the front wheels 7, 7 is provided.

Each of the rear wheels 6, 6 and the front wheels 7, 7 is provided with a U-shaped groove having flanges on both sides. When rolling on the pipe rails 8, 8, the rear wheels 6 and 7 tilt in the horizontal direction. Even if you do not accidentally get out of the wheel. The rear wheels 6, 6 are driven to rotate by a direct-current traveling motor 9, 9 having a large torque via a speed reduction mechanism.
9 is connected to a battery 11 and a generator 12 via a control box 10 corresponding to a control panel mounted on the portal frame 3,
The rotation is controlled according to the operation of. In addition, the said generator 1
Reference numeral 2 denotes a small-sized and high-output AC generator, which is connected to the battery 11 and the traveling motors 9 via a rectifier arranged in the control box 10. The traveling motor 9 is not limited to being provided on both the rear wheels 6 described above, but may be provided for wheels located at relative positions such as diagonal positions.

As shown in FIGS. 1 and 3, the front wheels 7, 7 are rotated via a rotation shaft 7c by a front wheel stay 7a attached to the lower side frames 3f, 3f at the lower ends of the front leg frames 3c, 3c. It is pivoted. Front wheel stay 7
Limit switches 26, 26 project forward from a, 7a, and when they come into contact with stoppers provided at the end portions of the pipe rails 8, 8, the power of the traveling motors 9, 9 is turned off, and the traveling of the traveling cart 4 is stopped. . Limit switches 27, 27 also project rearward from the rear wheels 6, 6, and
When the vehicle travels backward and comes into contact with a stopper provided at the end of the pipe rails 8, the power of the traveling motors 9, 9 is turned off, and the traveling of the traveling vehicle 4 is stopped.

On the other hand, in FIG. 1, the portal frame 3 is provided with a pair of left and right elevating frames 13, 13 which can move up and down over the front leg frames 3c, 3c and the rear leg frames 3d, 3d. Have been. This lifting frame 1
The three wheels 13 and 13 have the same structure and are arranged symmetrically. One of the three wheels 13 is provided at both front and rear ends of the lifting frame 13 via left and right support plates 14 and 14, respectively. It is rotatably supported, and three rolling wheels 15 on the front end side sandwich the front leg frame 3c from the front-rear direction, and three rolling wheels 15 on the rear end side sandwich the rear leg frame 3d from the front-rear direction. And the lifting frame 1
Numeral 3 is movable up and down over the front leg frame 3c and the rear leg frame 3d. Further, the lifting mechanism is also applied to the front leg frame 3c and the rear leg frame 3d of the portal frame 3. That is, although not shown in detail, the front and rear leg frames 3c and 3d are inserted into the pair of lower side frames 3f, and the insertion portions are used to engage and disengage the two frames. The engagement pin 3h is inserted. For this reason, the engagement pin 3h
To remove the front and rear leg frames 3c, 3c.
The vertical position of d can be adjusted with respect to the lower side frame 3f.

In order to drive the elevating frame 13 up and down, an elevating motor 16 with a deceleration mechanism that is rotationally controlled by the control box 10 is attached to the upper end of the front leg frame 3c of the portal frame 3. At the same time, a drive shaft (not shown) rotatably driven by the lift motor 16 is rotatably inserted into and supported by the upper side frame 3e, and is transmitted to the drive shaft and synchronously rotates in the same direction. A screw shaft (not shown) is rotatably inserted and supported in the front leg frame 3c and the rear leg frame 3d.

Then, each nut (not shown) screwed to the screw shaft is provided with slits 3g, 3g opened on the outer surfaces of the front leg frame 3c and the rear leg frame 3d.
The lifting frame 13 is connected to the support plates 14 at both front and rear ends of the lifting frame 13 via a connecting member (not shown) penetrating the front frame 13 according to the rotation of the lifting motor 16. It is driven up and down along 3c and the rear leg frame 3d.

The portal frame 3 is a front horizontal frame 3
a and the rear horizontal frame 3b
It is divided, and its divided ends are pivotally connected via connecting pins 17, 17, respectively. The connecting pins 17, 17 are bent at the center in the left-right width direction using the connecting pins 17, 17 as a refraction point, thereby forming a folded structure. Then, the slide column 1 extending upward to the brackets 18, 18 integrated with the connection pins 17, 17 is provided.
9 and 19 are erected, and each slide support 19 and 19 has
The sliding cylinder portions 20a, 20a of the connecting fittings 20, 20 are slidably fitted to each other, and can be fixed at an arbitrary sliding position by operating the stop lever 20b.

The connecting fittings 20, 20 are connected to the sliding cylindrical portion 20.
It has a left-right symmetrical shape that projects slightly obliquely upward in the left-right direction about the center a and 20a, and is fixed to the front and rear ends of a connecting frame 21 disposed above the portal frame 3. Then, the connection frame 21 is supported above the center of the gate frame 3 in the left-right width direction via the connection fittings 20, 20, and the gate frame 3 is bent symmetrically with the connection pins 17, 17 as bending points. In addition, a pair of left and right support stays 22 and 22 are provided so as to be arranged in front and rear, respectively.

The support stays 22 are of equal length with their intermediate portions slightly bent downward, and their inner ends are pivotally attached to the left and right ends of the connecting fittings 20, 20 so as to be rotatable vertically. Have been. The outer ends of the pair of left and right support stays 22 arranged on the front side are connected to the front horizontal frame 3a.
A pair of left and right support stays 22, 22 are pivotably mounted in the vicinity of both ends of the upper and lower sides, respectively, and are disposed on the rear side.
Are rotatably mounted in the vicinity of both ends of the rear horizontal frame 3b so as to be vertically rotatable.

On the other hand, the tea leaf pruning machine 5 is of a clipper type for pruning a half of the width of the tea ridge 2 in the width direction. It is laid vertically. An arc-shaped clipper blade (cutting blade) 5 is provided on one end side of the tea tree ridge 2 from the cutting blade driving unit 5c.
d is extended, and a hair clipper blade 5d
And a blow duct 5e having a plurality of nozzles for blowing backward the tea leaves picked by the clipper blade 5d. Although not shown, a tea leaf accommodating bag (part) for accommodating tea leaves that are plucked by the clipper blade 5d and blown backward by the blower duct 5e is attached to and detached from the clipper blade 5d. These configurations are the same as those of a conventionally known two-person tea picker.

A semicircular frame pipe 5f is attached to the tea picking machine 5 on the outer peripheral portion of the blower 5b on the outer side of the blower 5b as a member for suspending the traveling cart 4, and cutting is performed at both ends of the frame pipe 5f. The support fittings 5g, 5g are screwed to be positioned above the blade drive unit 5c.
The lower ends of a pair of front and rear support frames 5i, 5i are supported on the g, 5g via shafts 5h, 5h so as to be vertically rotatable.
The upper ends of the support frames 5i, 5i are pivotally attached to both ends of a horizontal support rod 5j, and a rotation support member 5k is mounted at an intermediate position in the longitudinal direction of the horizontal support rod 5j. Instead of the tea-plucking machine, a leveling machine (not shown) can be attached to the turning support member 5k. In this case, the turning support member 5k is turned to turn the turning support member 5k on the side opposite to the tea tree to be pruned. Face the tea machine to the tea plantation.

As shown in FIG. 3, a vertical adjusting handle 51 is provided at the outer ends of the clipper blade 5d and the air duct 5e.
Is provided. The locking portion 5m is inserted into a locking frame 23 provided at an intermediate portion between the lifting frames 13, 13, and is fixed and released by a fixing knob 23a. Therefore, the outer end side of the tea leaf picking machine 5 is adjusted up and down by rotating the up / down adjustment handle 51 and raising and lowering the elevating frame 13 in a state where the engaging portion 5m is fixed to the engaging frame 23.

At a middle position of the support frame 21, a suspension motor 24 having a brake mechanism and a speed reduction mechanism, the rotation of which is controlled by a control box 10 corresponding to a control panel, and a pinion motor driven by the suspension motor 24. A rack mechanism 25 is provided, and the rotation support member 5k is connected to a lower end of a rack shaft 25a that is inserted into the pinion rack mechanism 25 and driven vertically. Accordingly, the tea leaf picking machine 5 includes the rack shaft 25a and the support frames 5i, 5 around the cutting blade drive unit 5c.
i, vertical rotation by the rotation supporting member 5k, and vertical rotation by the support frames 5i, 5i are possible. Further, since the support frames 5i, 5i support a portion of the tea extractor 5 closer to the outside of the prime mover 5a, the support frame 5i does not hinder the attachment and detachment of the tea leaf storage bag. The details of such a configuration are disclosed in Japanese Patent Application Laid-Open No. 9-298931 filed by the applicant of the present invention.

The control box 10 has built-in microcomputers for controlling the rotations of the traveling motors 9, 9, the elevating motor 16, and the elevating motor 24.
The operation surface is configured as shown in FIG. On the operation surface, a forward travel button 50A and a reverse travel button 50A 'for synchronously controlling the rotation of the left and right traveling motors 9 and 9 so as to move the traveling vehicle 4 forward or backward at a low speed, and for stopping the traveling motors 9 and 9 Button 50B, voltage indicator 51 of battery 11, mowing counter 53 for setting the number of rotations of wheels driven by running motors 9 and 9 to determine running distance, speedometer 54 for setting running speed, left and right ascending and descending A lifting switch 55 for individually controlling the rotation of each lifting motor 16 so as to raise and lower the frames 13, 13 individually to set the cutting height, and limit switches provided for the rear wheels 6, 6 and the front wheels 7, 7. Forward indicator light 56 and reverse indicator light 57 that indicate that 26 and 27 are operating, and failures such as disconnection of switches in operation unit 50 described later. Pulse indicator lamp 58 for display, battery 11
A charge monitor lamp 59 for displaying a period until the charging is completed when the vehicle is charged, a travel controller display lamp 60 for displaying a failure of a circuit provided in the control box 10, and a case where wheels driven by the travel motors 9 are stopped. A brake switch 61 for driving a braking device for preventing overrun and a main power switch 62 are provided. The control box 10 is provided with a receiving unit (not shown) that can receive a signal from a remote controller operating unit (not shown) to enable remote operation.

At four corners of the portal frame 3 including the place where the control box 10 is installed, operation units 50 for starting and stopping the traveling motors 9 and 9 are provided. In FIG. 1, the portal frame 3
In the other corners except for the position where the control box 10 is disposed, operation boxes 51 provided with operation switches 50A and 50B as one of the starting and stopping means are provided respectively. A push button type or a lever type is adopted as the switch as the starting and stopping means. The operation box 51 is provided on both sides on the front side in the traveling direction of the portal frame 3 in FIGS.
As shown in FIG. 3, the switches 50A and 50B are exposed to the front in the traveling direction, and at the rear corner of the portal frame 3 in the traveling direction, as shown in FIG.
A and 50B are exposed backward in the traveling direction. As shown in FIGS. 3 and 4, the control box 10 has switches 5 on its rear surface in the traveling direction separately from the operation surface.
0A and 50B are provided. Each switch 50A, 5
OB is connected in parallel with a start (forward / reverse) and stop switch provided in the control box 10, and when any of the switches is operated on the operation unit 50 in any position, the traveling motor 9 is connected. , 9 can be output.

Among the operation units, an operation unit (reference numeral 50 'in FIGS. 1 and 2 for convenience) disposed at a diagonal position which is one of the relative positions with respect to the control box 10.
Are provided with lifting switches 63 and 64 (see FIGS. 1 and 2) for individually lifting and lowering the lifting motor 16, similarly to those provided in the control box 10. The elevating switches 51 and 52 are connected in parallel with those mounted on the control box 10 in the same manner as the start and stop switches 50A and 50B described above. Can be driven. In addition, a remote control unit, that is, an operation unit of a so-called remote controller is provided in the vicinity of the traveling carriage 4 for the receiving unit provided in the control box 10, instead of the operation unit 50. It is also possible to perform the same operation as the operation unit 50 using the operation unit. Further, in the operation unit of the remote controller, not only the start and stop operations described above but also a speed setting can be performed.

Since the present embodiment has the above configuration,
When the start and stop operations of the traveling motors 9 and 9 are performed, the start switch 50A or the stop switch 50B is provided in any of the operation units 50 located at the four corners of the portal frame 3.
Can be operated. For example, in the case of performing a harvesting and leveling operation instead of a tea leaf pruning operation, the operator is required to take control because the leveling machine is mounted in a state of being horizontally inverted with respect to the installation position of the tea leaf pruning machine 5. It is necessary to move from the side where the box 10 is located to the opposite side. For this reason, when starting the traveling motors 9 and 9 for performing the mowing work, the operation unit 50 located on the opposite side to the control box 10, that is, either the operation unit 50 in the forward or rearward direction in the traveling direction. By operating the start switch 50A, the mowing and trimming operation can be started without turning around to the position of the control box 10 one by one. Further, even when the traveling trolley 4 is to be stopped, the stop switch 50B of the operation unit 50 can be operated at the side where the leveling machine faces the tea tree, that is, at the position opposite to the control box 10. Thus, the operation can be immediately switched to the stomach operation, whereby runaway of the traveling vehicle 4 can be prevented.

When performing the mowing and leveling operation, it is necessary to adjust the height of the leveling machine in accordance with the height of the tea plant. Since the lift switches 63 and 64 similar to those provided in the control box 10 are provided, the height can be adjusted while visually confirming the facing state between the leveling machine and the tea tree at the closest position. . This makes it possible to adjust the height of the leveling machine one control box at a time.
Since the process can be executed without turning to the zero position, the labor burden on the operator can be reduced.

Next, embodiments of the present invention will be described. FIG. 6 is a diagram showing an embodiment of the invention described in claims 4 to 7. The embodiment shown in FIG.
The present invention is directed to a self-propelled tea leaf picking machine which uses a wheel with casters that can be turned as a traveling device as a front wheel and can run independently even without a pipe rail as shown in FIG. 6, the portal frame (indicated by reference numeral 3 for convenience), unlike the configuration shown in FIG. 1, has a configuration that can expand and contract in the horizontal direction without bending in the vertical direction. In other words, the front horizontal frame 3a which is laid horizontally before and after the traveling direction.
The rear horizontal frame 3b uses a prismatic pipe whose left and right ends are divided into side end frames 3a1 and 3b1 with reference to a portion integrated with the support frame 21 at the center in the width direction. One end of each of the side end frames 3a1 and 3b1 is inserted into the front horizontal frame 3a and the rear horizontal frame 3b located at the center in the width direction. At the insertion end of the side end frames 3a1, 3b1 with respect to the front horizontal frame 3a and the rear horizontal frame 3b located at the center in the width direction, the horizontal frames 3a,
Pin engagement holes 3a2 and 3b2 for integration with 3b are formed, and a plurality of the pin coupling holes 3a2 and 3b2 are formed in the side end frames 3a1 and 3b1 along the width direction. . Thereby, the side end frame 3a
1, 3b1 can be moved in the direction of being pulled out or housed with respect to the horizontal frames 3a, 3b, and integrated with each other when a pin (not shown) is inserted into the pin coupling hole at the moved position. Therefore, the position of the lower side frame 3f can be changed in the width direction of the tea ridge.

On the other hand, the lower side frame 3f is provided with front wheels with casters (indicated by reference numeral 7A in FIG. 6 for convenience) on the front side in the traveling direction.
Is steered by a steering operation unit 60 provided on the front surface of the control box 10 and one of the side end frames 3a1 provided diagonally to the control box 10. In FIG. 6, the steering operation unit 60 is shown only on one side of the side end frame 3a1, but on the control box 10 side, the side end inserted into the rear horizontal frame 3b at a position rearward of the control box 10. It is provided on either the frame 3b1, the upper side frame 3e, or the rear wall surface of the control box 10. In the present embodiment, the steering operation unit 60 is provided with a switch or a steering wheel so that the steering angle can be set.

On the other hand, the rear wheels (shown by reference numeral 6A for convenience) driven by the traveling motors 9, 9
f with a hinge connection (for convenience, the hinge connection portion is denoted by reference numeral 6).
B), and the direction in which the rear wheel 6A is parallel to the traveling direction is normally set by a locking means (not shown). The direction of the rear wheel 6A can be changed by releasing the locking means. For example, by turning the rear wheel by 90 degrees, the turning radius at a narrow headland can be reduced and the rear wheel 6A can be turned. The configuration of the driving unit using the traveling motors 9 and 9 is not limited to the rear wheel 6A as described above, and that the driving force for pulling the tea bag works well on the wheels. In consideration of this, one of the rear wheels 6A, for example, a rear wheel 6A located at a corner of the control box 10 and a front wheel at a diagonal position of the rear wheel 6A, that is, a steering operation unit 60 is provided. Motors 9, 9 for the front wheels 7A located on the lower frame 3f on the side.
It is also possible to set up. The configuration of the operation unit for starting and stopping the traveling motors 9 and 9 and the elevation motor 16 and for adjusting the height using the elevation motor 16 is such that the operation unit indicated by reference numeral 50 in FIG. The configuration is the same as that of the control box 10 having the configuration, and the operation unit 50 is provided at least at a relative position of the control box 10, that is, at an opposite side or a diagonal position to the control box 10.

Since the present embodiment has the above configuration,
The position of the lower side frame 3f can be changed corresponding to the width of the tea ridge. That is, by moving the side end frame 3m2 in the insertion / removal direction with respect to the center frame 3m1, the facing distance of the lower side frame 3f is changed. On the other hand, at the time of working in the tea ridge, as in the embodiment shown in FIG. 1, the start and stop of the traveling device can be controlled by the operation unit 50, and the direction of the tea ridge can be controlled by the operation of the steering operation unit 60. The tea picking machine 1 can be moved.

When the vehicle moves in the tea ridge and goes to the headland, the traveling carriage 4 can be turned by the steering operation part 60 to get into the adjacent tea ridge.
If the turning radius is not sufficient even if the front wheel 7A is turned by the operation described above, the locking means at the hinge joint 6B of the rear wheel 6A is released and the rear wheel 6A is rotated 90 degrees. As a result, the turning radius can be made extremely small, so that the traveling wheel can be easily turned to get into the adjacent tea ridge. When entering the adjacent tea ridge, the rear wheel 6A
By locking the hinge connecting portion 6B in the above-described manner and making the rear wheel 6A parallel to the direction of the tea ridge, the tea picking machine 1 can be moved at an angle corresponding to the steering by the steering operation portion 60.

According to the above-described embodiment, steering can be performed in accordance with the direction of the tea ridges, and the steering operation can be performed on the control box side 10 and relative positions thereof. Steering can be easily performed without moving the work vehicle.

In the embodiment shown in FIGS. 1 and 6, the configuration of the traveling device is exemplified by wheels rolling on the pipe rails or wheels directly contacting the ground without using the pipe rails. However, the present invention is not limited to such a configuration. For example, it is also possible to adopt a configuration using an endless belt-like traveling device such as a caterpillar or a belt crawler, and further, in the case of using each wheel or the endless belt-like traveling device, to use each wheel or the endless belt-like traveling device. Of course, it is also possible to change the moving speed of any of the hits so that the steering can be performed.

Further, as a mechanism used for steering, for example, a configuration shown in FIG. 7 can be employed. The configuration shown in FIG. 7 is such that the wheels before and after the traveling direction are simultaneously turned to further reduce the turning radius, and can be moved skew or in a direction perpendicular to the traveling direction without turning. FIG. 7 is a wheel with a caster located on the front side in the traveling direction (wheel indicated by reference numeral 7A) in the configuration shown in FIG.
In the figure, the front wheel (indicated by reference numeral 7B for convenience) is attached to the lower side frame 3f as shown in FIG. Instead of the support bracket having a revolving structure that swings around a position as a fulcrum, the rotation shaft is supported by a support bracket (represented by reference numeral 3f1 for convenience) having a structure rotatable at a position attached to the lower side frame 3f. ing. The support bracket 3f1 is provided with a mounting portion extending laterally, and one end of the rod 70A of the cylinder member 70 is mounted on the mounting portion. The cylinder member 70 has an extension amount that can set the turning angle of the front wheel 7B and the rear wheel 6A described later to 45 to 90 °. The rod 70 is attached to the cylinder member 70.
A rod 70B is provided which is extendable and contractible in the same direction as the rod 70A in a direction relative to A, and the rod 70B is connected to a shaft support of the rear wheel 6A. Cylinder member 70
Is driven by pneumatic or hydraulic control, and an operation unit for the driving is executed by the control box 10 and the steering operation unit 60 or a remote controller operation unit (not shown). In the above configuration, the front wheel 7A and the rear wheel 6A can rotate in phase by extending and contracting the rods 70A and 70B of the cylinder member 70. In addition, since the turning angle is set to 45 to 90 °, skewing or lateral movement can be performed according to the state of the portion to be moved. In the operation unit in this case, if a speed setting unit that can perform speed control on each of the left and right wheels is provided in addition to the operation unit for simple steering, the valley side and the mountain side are different when moving on a slope or the like. By setting the speed, the optimal torque distribution for the movement can be set between the left and right wheels. Further, the traveling drive by the traveling device is not limited to providing the traveling motor 9 serving as a driving source for the rear wheels 6 or 6A as in the above-described embodiment, but is applied to each wheel including the front wheels. A so-called four-wheel drive may be provided with a traveling motor. By adopting the four-wheel drive in this manner, for example, even when the wheels are turned by 90 ° and moved in the lateral direction using the above-described steering mechanism, it is possible to eliminate the wheels that are not driven and perform the traveling movement. Also in this case, it is of course possible to control the speed of each wheel similarly to the case described above.

Further, the present invention relates to the tea tree ridge 2 of the above embodiment.
The present invention is not limited to the one in which the tea leaf plucking machine 5 that plucks one side of the tea tree is hung. You can do it. Further, as the traveling drive source, a hydraulic motor can be used instead of the traveling motors 9 and 9 described above.

[0044]

As is apparent from the above embodiments, according to the first to third aspects of the present invention, the start and stop switches of the traveling device are installed at the four corners of the traveling vehicle, so that the operator can operate the traveling device. The starting and stopping of the traveling device can be controlled at a position where the worker can reach, regardless of the position of the traveling trolley.Furthermore, the equipment is installed at a position opposite to the picking operation In such a case, the height can be adjusted on the side where the equipment is installed, so that the adjustment operation can be performed while visually recognizing the facing state between the equipment and the tea plant at the closest position. Accordingly, the operation of the traveling device can be performed quickly, and the operation can be performed without moving away from the position where the operation is performed, thereby preventing runaway of the traveling device and an increase in labor burden on the operator.

According to the invention as set forth in claims 4 to 7, the traveling device can be steered and the drive unit can be turned, so that a turning radius larger than the steering amount can be obtained, and the headland can be narrowed. Even if it is, it will be possible to enter the adjacent tea ridge.
Moreover, the turning operation by such steering is originally at a diagonal position with respect to the control panel provided for performing such turning operation, and is performed at the same place where the starting and stopping operations of the traveling device are performed. By being provided, it becomes possible to operate quickly even when the operator is at any position in the width direction of the tea ridge. As a result, the turning radius due to steering turning can be reduced, thereby enabling turning on a narrow headland and shortening the moving time before starting work, thereby reducing the labor burden of the worker, that is, reducing long-time work. can do.

[Brief description of the drawings]

FIG. 1 is a perspective view of a self-propelled tea leaf picking machine for explaining an embodiment of the invention described in claims 1 to 3;

FIG. 2 is a front view of the self-propelled tea leaf picking machine shown in FIG.

FIG. 3 is a side view of the self-propelled tea leaf picking machine shown in FIG. 1;

FIG. 4 is a rear view of the self-propelled tea leaf picking machine shown in FIG. 1;

5 is a diagram showing an operation surface of a control box corresponding to a control panel used in the self-propelled tea leaf picking machine shown in FIG.

FIG. 6 is a perspective view of a self-propelled tea leaf picking machine for explaining an embodiment of the invention described in claims 4 to 8;

FIG. 7 is a perspective view for explaining a partially modified example of the self-propelled tea leaf picking machine shown in FIG. 6;

FIG. 8 is a perspective view showing an example of a conventional self-propelled tea leaf picking machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rail-type tea leaf picking machine 2 Tea ridge 3 Gate type frame 3a Front side frame 3a1 Side end frame 3a2 Pin connection hole 3b Rear side frame 3b1 Side end frame 3b2 Pin connection hole 4 Traveling cart 5 Tea leaf picking machine 6, 6A Rear wheel (drive wheel) 7 Front wheel (driven wheel) 8 Pipe rail 9 Traveling motor 10 Control box forming control panel 16 Lifting motor 24 Suspension motor 50 Operation unit 50A Start switch 50B Stop switch 60 Steering operation unit

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[Procedure amendment]

[Submission date] June 29, 2000 (2006.2.
9)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 4

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

According to a fourth aspect of the present invention, a traveling device is provided at the lower end of each of the front and rear and left and right legs of the gate-shaped frame straddling the tea ridge, and the traveling device is driven to extend over the tea ridge. In a self-propelled tea leaf pruning machine in which a tea leaf pruning machine is hung on a traveling cart traveling in the front-rear direction, a tea leaf accommodating part is attached near the tea pruning machine so as to pluck tea leaves of a tea tree ridge. At least one of the left and right legs
The traveling device is characterized in that the traveling device is provided with a steerable configuration.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0015

[Correction method] Change

[Correction contents]

According to the invention described in claims 4 to 7, the traveling device can extend and contract at least one of the legs , and the traveling device can
It is possible to steer in the equipped state, and since the drive unit is capable of turning, it is possible to obtain a turning radius greater than the steering amount,
It is possible to enter the adjacent tea ridge and to position the plucking machine with respect to the tea ridge without being affected by the height of the narrow headland or the tea ridge .

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0045

[Correction method] Change

[Correction contents]

According to the invention as set forth in claims 4 to 7, the traveling device can be steered and the drive unit can be turned, so that a turning radius larger than the steering amount can be obtained, and the headland can be narrowed. Even if it is, it will be possible to enter the adjacent tea ridge.
Moreover, the turning operation by such steering is originally at a diagonal position with respect to the control panel provided for performing such turning operation, and is performed at the same place where the starting and stopping operations of the traveling device are performed. By being provided, it becomes possible to operate quickly even when the operator is at any position in the width direction of the tea ridge. As a result, the turning radius due to steering turning can be reduced, thereby enabling turning on a narrow headland and shortening the moving time before starting work, thereby reducing the labor burden of the worker, that is, reducing long-time work. can do. In addition, legs can be expanded and contracted
Because it is noh, even if you get in the adjacent tea ridge, tea
Optimum positioning of the plucking machine at the position corresponding to the height of the ridge
It is possible to set the plucking state.

Claims (7)

[Claims] 1. A traveling device in which a traveling device is provided at the lower end of each of the front and rear and left and right legs of a gate-shaped frame straddling a tea tree ridge, and the traveling device is driven to travel in the front-rear direction while straddling the tea tree ridge. In a self-propelled tea leaf pruning machine in which a tea leaf pruning machine is hung on a bogie, and a tea leaf accommodating part is attached near the tea pruning machine to pluck the tea leaves of the tea tree ridge, the traveling cart has four corners. A self-propelled tea leaf picking machine, characterized in that an operation unit capable of starting and stopping the running device is provided. 2. The self-propelled tea leaf picking machine according to claim 1, wherein said operating section is provided with a starting and stopping means. 3. The traveling cart is provided with an adjusting operation section for adjusting a plucking position of a tea leaf picking machine suspended therefrom, relative to a position of the traveling device and a control panel of the tea leaf plucking machine. The self-propelled tea leaf picking machine according to claim 1, characterized in that: 4. A traveling device in which a traveling device is provided at the lower end of each of the front and rear and left and right legs of the gate-shaped frame straddling the tea ridge, and the traveling device is driven to travel in the front-rear direction while straddling the tea ridge. In a self-propelled tea leaf pruning machine in which a tea leaf pruning machine is hung on a bogie and a tea leaf accommodating part is attached near the tea pruning machine to pluck the tea leaves of the tea tree ridge, the traveling cart has a relative position. A self-propelled tea leaf picking machine, characterized in that an operating section for starting and stopping the traveling device is provided on the traveling device, and the traveling device is provided with a steerable configuration. 5. The self-propelled tea leaf picking machine according to claim 4, wherein the traveling device has a configuration in which a driving unit is rotatable. 6. The self-propelled tea leaf picking machine according to claim 4, wherein the traveling device has a configuration in which a driving unit is provided at a relative position. 7. The self-propelled tea leaf picking machine according to claim 1, wherein one of the operation units for performing the start and stop operations and the steering unit are provided at the same location.